Counties in Iowa by employer firms

Polk County had the highest employer firms of 99 counties in 2018, at 9,216. Adams County had the lowest, at 96. The median was 350 and the figure for Iowa was 56,278. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest9,216Polk County
Lowest96Adams County
Median35099 counties
Iowa56,278History

Map of counties, 2018

Adair County: 189 countAdams County: 96 countAllamakee County: 306 countAppanoose County: 258 countAudubon County: 160 countBenton County: 472 countBlack Hawk County: 2,372 countBoone County: 498 countBremer County: 514 countBuchanan County: 394 countBuena Vista County: 475 countButler County: 268 countCalhoun County: 225 countCarroll County: 711 countCass County: 386 countCedar County: 391 countCerro Gordo County: 1,137 countCherokee County: 297 countChickasaw County: 316 countClarke County: 154 countClay County: 533 countClayton County: 420 countClinton County: 917 countCrawford County: 359 countDallas County: 1,735 countDavis County: 162 countDecatur County: 131 countDelaware County: 432 countDes Moines County: 896 countDickinson County: 639 countDubuque County: 2,162 countEmmet County: 244 countFayette County: 462 countFloyd County: 326 countFranklin County: 271 countFremont County: 129 countGreene County: 230 countGrundy County: 244 countGuthrie County: 238 countHamilton County: 326 countHancock County: 251 countHardin County: 449 countHarrison County: 305 countHenry County: 423 countHoward County: 223 countHumboldt County: 259 countIda County: 219 countIowa County: 402 countJackson County: 447 countJasper County: 624 countJefferson County: 535 countJohnson County: 2,668 countJones County: 416 countKeokuk County: 179 countKossuth County: 457 countLee County: 697 countLinn County: 4,203 countLouisa County: 166 countLucas County: 160 countLyon County: 335 countMadison County: 342 countMahaska County: 469 countMarion County: 697 countMarshall County: 663 countMills County: 262 countMitchell County: 275 countMonona County: 192 countMonroe County: 156 countMontgomery County: 255 countMuscatine County: 778 countO'Brien County: 437 countOsceola County: 165 countPage County: 350 countPalo Alto County: 248 countPlymouth County: 589 countPocahontas County: 174 countPolk County: 9,216 countPottawattamie County: 1,541 countPoweshiek County: 443 countRinggold County: 112 countSac County: 271 countScott County: 3,408 countShelby County: 323 countSioux County: 1,084 countStory County: 1,707 countTama County: 257 countTaylor County: 123 countUnion County: 292 countVan Buren County: 125 countWapello County: 615 countWarren County: 711 countWashington County: 581 countWayne County: 118 countWebster County: 833 countWinnebago County: 275 countWinneshiek County: 527 countWoodbury County: 2,057 countWorth County: 150 countWright County: 310 count
  • Under 180
  • 180 to 270
  • 270 to 350
  • 350 to 470
  • 470 to 710
  • 710 and over
count, 2018. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Polk County: 9,216 countPolk County9,216Linn County: 4,203 countLinn County4,203Scott County: 3,408 countScott County3,408Johnson County: 2,668 countJohnson County2,668Black Hawk County: 2,372 countBlack Hawk County2,372Dubuque County: 2,162 countDubuque County2,162Woodbury County: 2,057 countWoodbury County2,057Dallas County: 1,735 countDallas County1,735Story County: 1,707 countStory County1,707Pottawattamie County: 1,541 countPottawattamie County1,541Cerro Gordo County: 1,137 countCerro Gordo County1,137Sioux County: 1,084 countSioux County1,084Clinton County: 917 countClinton County917Des Moines County: 896 countDes Moines County896Webster County: 833 countWebster County833Muscatine County: 778 countMuscatine County778Carroll County: 711 countCarroll County711Warren County: 711 countWarren County711Lee County: 697 countLee County697Marion County: 697 countMarion County697Marshall County: 663 countMarshall County663Dickinson County: 639 countDickinson County639Jasper County: 624 countJasper County624Wapello County: 615 countWapello County615Plymouth County: 589 countPlymouth County589Washington County: 581 countWashington County581Jefferson County: 535 countJefferson County535Clay County: 533 countClay County533Winneshiek County: 527 countWinneshiek County527Bremer County: 514 countBremer County514Boone County: 498 countBoone County498Buena Vista County: 475 countBuena Vista County475Benton County: 472 countBenton County472Mahaska County: 469 countMahaska County469Fayette County: 462 countFayette County462Kossuth County: 457 countKossuth County457Hardin County: 449 countHardin County449Jackson County: 447 countJackson County447Poweshiek County: 443 countPoweshiek County443O'Brien County: 437 countO'Brien County437Polk County: 9,216 countPolk County9,216Linn County: 4,203 countLinn County4,203Scott County: 3,408 countScott County3,408Johnson County: 2,668 countJohnson County2,668Black Hawk County: 2,372 countBlack Hawk County2,372Dubuque County: 2,162 countDubuque County2,162Woodbury County: 2,057 countWoodbury County2,057Dallas County: 1,735 countDallas County1,735Story County: 1,707 countStory County1,707Pottawattamie County: 1,541 countPottawattamie County1,541Cerro Gordo County: 1,137 countCerro Gordo County1,137Sioux County: 1,084 countSioux County1,084Clinton County: 917 countClinton County917Des Moines County: 896 countDes Moines County896Webster County: 833 countWebster County833Muscatine County: 778 countMuscatine County778Carroll County: 711 countCarroll County711Warren County: 711 countWarren County711Lee County: 697 countLee County697Marion County: 697 countMarion County697Marshall County: 663 countMarshall County663Dickinson County: 639 countDickinson County639Jasper County: 624 countJasper County624Wapello County: 615 countWapello County615Plymouth County: 589 countPlymouth County589Washington County: 581 countWashington County581Jefferson County: 535 countJefferson County535Clay County: 533 countClay County533Winneshiek County: 527 countWinneshiek County527Bremer County: 514 countBremer County514Boone County: 498 countBoone County498Buena Vista County: 475 countBuena Vista County475Benton County: 472 countBenton County472Mahaska County: 469 countMahaska County469Fayette County: 462 countFayette County462Kossuth County: 457 countKossuth County457Hardin County: 449 countHardin County449Jackson County: 447 countJackson County447Poweshiek County: 443 countPoweshiek County443O'Brien County: 437 countO'Brien County437
count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Full ranking

RankCounties2018
count
Change on 2017
1Polk County9,216+2%
2Linn County4,203+1.3%
3Scott County3,408-0.1%
4Johnson County2,668+2.7%
5Black Hawk County2,372+0.2%
6Dubuque County2,162-1.2%
7Woodbury County2,0570%
8Dallas County1,735+8.1%
9Story County1,707+1.7%
10Pottawattamie County1,541-1.1%
11Cerro Gordo County1,137+1.4%
12Sioux County1,084+1.3%
13Clinton County917-1.1%
14Des Moines County896-0.8%
15Webster County833+1.2%
16Muscatine County778-0.8%
17Carroll County711-0.1%
17Warren County711+1.6%
19Lee County697-2.4%
19Marion County697+4.2%
21Marshall County663+1.2%
22Dickinson County639-0.5%
23Jasper County624+1.5%
24Wapello County615-3.1%
25Plymouth County589-1.8%
26Washington County581+1.2%
27Jefferson County535+0.6%
28Clay County533+2.1%
29Winneshiek County527-0.2%
30Bremer County514-1.7%
31Boone County498+1.4%
32Buena Vista County475+1.1%
33Benton County472+0.6%
34Mahaska County469-0.2%
35Fayette County462-1.1%
36Kossuth County457+0.7%
37Hardin County449-0.2%
38Jackson County447-1.3%
39Poweshiek County443+0.2%
40O'Brien County437-1.8%
41Delaware County432+2.1%
42Henry County423-0.9%
43Clayton County420-0.7%
44Jones County416-0.2%
45Iowa County402+1.8%
46Buchanan County394-0.8%
47Cedar County391-2.3%
48Cass County386-2.5%
49Crawford County359-1.4%
50Page County350+1.4%
51Madison County342+4.6%
52Lyon County335+0.9%
53Floyd County326-2.7%
53Hamilton County326-3%
55Shelby County323+0.9%
56Chickasaw County316-1.3%
57Wright County3100%
58Allamakee County306+2.3%
59Harrison County305+2.7%
60Cherokee County297-0.3%
61Union County292+1.4%
62Mitchell County275+0.7%
62Winnebago County275+1.5%
64Franklin County271+1.1%
64Sac County271+2.7%
66Butler County268-1.1%
67Mills County262+0.8%
68Humboldt County259-0.8%
69Appanoose County258-2.6%
70Tama County257+1.6%
71Montgomery County255-4.1%
72Hancock County251+2%
73Palo Alto County2480%
74Emmet County244-2.8%
74Grundy County244-2.4%
76Guthrie County2380%
77Greene County230-1.3%
78Calhoun County225+1.8%
79Howard County223+6.2%
80Ida County219+1.9%
81Monona County192-1%
82Adair County189+1.6%
83Keokuk County179-2.7%
84Pocahontas County174-4.4%
85Louisa County166-0.6%
86Osceola County165+4.4%
87Davis County162+1.9%
88Audubon County160-3%
88Lucas County160+2.6%
90Monroe County156-1.9%
91Clarke County154-1.9%
92Worth County150+3.4%
93Decatur County131+4.8%
94Fremont County129-3.7%
95Van Buren County125-3.1%
96Taylor County123+2.5%
97Wayne County118-1.7%
98Ringgold County112+0.9%
99Adams County96+2.1%

Other periods

About this ranking

Number of firms in the private nonfarm sectors covered by the US Census Bureau Business Dynamics Statistics. Establishments under common ownership form one firm.

Excludes nonemployer businesses. Differs from active_companies, the INE DIRCE count, which includes businesses without employees.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-11.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2025). Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties (Counties in Iowa by employer firms, 2018) [Data set]. Retrieved October 11, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv

MLA 9

Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in Iowa by employer firms, 2018. U.S. Census Bureau, 25 Sept. 2025, https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Invokely, https://invokely.ai/rankings/employer-firms/iowa-counties?period=2018. Accessed 11 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2025. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Counties in Iowa by employer firms, 2018. Dataset. Accessed October 11, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Also distributed by Invokely, https://invokely.ai/rankings/employer-firms/iowa-counties?period=2018.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in Iowa by employer firms, 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv, via Invokely: https://invokely.ai/rankings/employer-firms/iowa-counties?period=2018 (Accessed: 11 October 2026).

BibTeX
@misc{census_counties_in_iowa_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in Iowa by employer firms, 2018}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv},
  urldate = {2026-10-11},
  note = {Accessed via Invokely, https://invokely.ai/rankings/employer-firms/iowa-counties?period=2018. Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023\_st\_cty.csv. Retrieved 2026-10-11.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in Iowa by employer firms, 2018
PY  - 2025
DA  - 2025/09/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv
L2  - https://invokely.ai/rankings/employer-firms/iowa-counties?period=2018
Y2  - 2026/10/11
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firms/iowa-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-11.
ER  - 
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Questions

Which county has the highest employer firms?

Polk County, with 9,216 in 2018, according to the U.S. Census Bureau.

Which county has the lowest employer firms?

Adams County, with 96 in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Employer firms: other rankings

Counties in Iowa: more rankings